ABSORPTION OF LIQUID NUTRIMENT. 



5 



Place seeds of Wheat, Corn, Bean, Pea, or Buckwheat in folds of 

 moist cloth, in a pan of moist sawdust, or in a -Hansen germinator 

 (Fig. i), until % the radicles are a centimeter in length. 



Fill a glass jar or cylinder of a capacity of i to 2 liters with the 

 solution described above. The bottle should be well shaken before 

 this is done. Add a few drops of iron chloride to the solution in 

 the jar. Cut a hole i cm. in diameter through the center of a large 

 cork and fit in the top of the cylinder or jar as shown in Fig. 2. 



FIG. 2. 



Culture cylinder with seedling of Corn in position. K, cork. (Hansen.) 



Make a vertical cut from the outer edge of the cork to the central 

 opening. Fasten a seedling obtained as above in the aperture by 

 means of cotton-wool or asbestos fiber^ in such position that the 

 root only is immersed. Set in a sunny place. Renew the solution 

 once every week. 



Allow the plant to grow 3 or 4 weeks and compare with others 

 of the same age grown in the soil. 



